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Wear the Arc'teryx Women's Phase SL Bra and avoid that icky, uncomfortable soggy-bra feeling when you work up a sweat during your hike, climb, or mountain bike ride. Made with quick-drying, breathable, and moisture-wicking Phasic SL fabric, the Phase ensures solid on-the-trail comfort throughout your high-mountain pursuits.

  • Phasic SL features multidimensional polyester yarns that wick moisture laterally to dry quickly and polypropylene yarns with silver-ion encapsulated into the fibers that provide long-lasting odor control
  • Lightweight fabric has a smooth outer face that enables the Phase SL to slide easily under other layers
  • Flatlock seams eliminate annoying chafing issues
  • UPF 25-rated fabric shields your skin against the sun's harmful UV rays

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Arc'teryx Phase SL Bra - Women's

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Here's what others have to say...

4 5

Great Support but thin

  • Familiarity: I've put it through the wringer
  • Fit: True to size

So I love this bra great for wearing under a tank top but not as a stand alonne. If you are looking for a good stand alone bra get the Patagonia Active Mesh Bra ( As far as support this bra is great. Also the thin-ness is there to help with breathing. So you don't have a sopping wet bra if you sweat a lot. It also is a great choice for those racer back tanks that you just don't have a bra for. I am a 34 B and the small fits great!

4 5

Very thin fabric

  • Familiarity: I returned this product before using it

This bra was super comfortable when I tried it on. I got a size S and wear a size 32 B bra and felt like the small fit great. I got it for climbing and wanted to be able to have the option to wear it with nothing over it around people. I felt like the fabric was way to thin, almost as thin as underwear, so I wouldn't be comfortable around people in it because it showed everything. I feel like it would be the perfect bra for running or biking if you are smaller like me because it would keep you cool and wouldn't ever bother you.

3 5

Not for running

  • Familiarity: I returned this product before using it

While I liked the feel of the fabric, being a 32D/34C I didn't feel this would have enough support for anything more than hiking and hanging out. I returned it for something that could provide support when I'm on the move.